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What is the value of a in the equation , when ? 3 15 21 39

What is the value of a in the equation , when ? 3 15 21 39
asked 86.7k views
2 votes
What is the value of a in the equation , when ? 3 15 21 39

asked
User Basavaraj Hadimani
by
8.7k points

1 Answer

4 votes

Answer:

the mean =19.5

Explanation:

answered
User Liuyaodong
by
8.2k points
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